Flower box supporting bracket



FIG. 1 is a left side, front perspective view of a flower box supporting bracket showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view of the bracket; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a flower box supporting bracket, as shown and described. 